Separable fastener



July 1o, 192s.

F. S. CARR SEPARABLE FASTENER Filed Deo. 2o`I 1924 Inverti/:1702": Red S'Cwn ymqwwwwvvfq azi/ey@ Patented July K10, 92g v. Q o

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SEPARABLE rns'rniinan. r r

' iY Appncauon md remember 20,1924. serial No. 757,162. ,l This.l mmm/w amgio` provide an `importions of.theheadofthe stud to A'contract proved separable fastener-. .Without interference from therivet-receive' lnpthe drawmgs, Which illustrate a pre- `ing part 7. i The ,portion of the base Which t* fer-red yembodiment of my inventionz does not expand` or contractinay be ksup- -fFigure 1 is a front elevation of-t'hefastenported relative to the base flangev 1Oiny any 60 ingdevice; y suitable `Inannenbut I" prefer to support yit ,-'..Fig. 2 is 'a section f on: the'line 2-2 of bya plurality ofs'truts llpressed froiniithe Figi;` l v base 2, adjacent the resilient portions. if? 'Slis a side elevation of the socket; These struts ll'extend doWnWardly-(F igs. 2 Fig. 4 is anv elevation view of the socket and-5), and engagethevdepressed portion 12 `65 y frointhe'attachingside' thereof; Y. i of' the base langef-lOv thereby to ipre`vent f 'Fig 5 is affrontelevation of the preferred 'bendingof thereSlnt pOIOlS v thebfSf former the stud; 1` 2 of thestudexcept upon straightlines pass' @Fig 6: is a section on:the linewG-G of ing vthroughfthe basen- 2between the ends l5 Fig. 5With the supportand -rivetremo'ved; 0f lthe Slots 4 and adjacent'to-,theIstruts-70 o and. n Y By'extendin'g the slotsll into the base` 2, the 1 Fig. Tis a bottom plan View of the istud resilient portions are mademore .flexible and yas vshown in Fig.v 5.v areless apt tol become set than yif-the slots Referring to the drawings, I have shoivn terminated at the junctionofthe neclrand a vcontractib-le and expansible stud secured the base.l It ismuch eaSiertobend the man 75,

'to a'vflexible stud-carrying.medium and coterialnpon straight vlinespassing through operating with ak so'cketalso secured to ya the base b'etweentheendsof theislotsthan flexible socket-carrying'medium.,. it would bev to/bend the resilientparts ofthe The stud, as illustrated, is pressed Afrom stud `rvaboutLcurvedflines at thejunction'bea single piece of metal and presents a head tween the, neckfandthe base-ofthe stud. A30

1,.al base'p'ortion 2 and a neck 3 relatively Thusthe rivet-receiving orattaching part close to the base portion. The stud is also is spaced away from any part of the conprovided with a plurality of cross slots 4, tractible and eXpansib-le portions of the which extend into the base portion 2 to stud so 4as to `permit free flexing vof these provide a plurality of contractible and exparts during engagement and disengagement 95` i pansible portionswhich bend upon straight of the stud with amsoclret. e

lines passing through the base 2 between Thesocket, as illustrated,is formedfrom the ends of the slots. l y a single piece of metal and comprises a disk- While the stud may be secured-in any like part 13 havinga stud-receiving apersuitable manner to the studcarrying mediyture 14 therethrough, a generally curved re- 90 urn 5, I prefer to secure it thereto by a Versely `bent Wall 15 surrounding the aper tubular rivet 6, which passes through the` ture 14 and a plurality of attaching prongs stud-carryingmedium 5 and is upset against 16. extending from the reversely bent poray rivet-receiving part 7 secured to the base tion. p y f portion 2 of the stud and protruding into The'soclret may be attached to the flexible 95 fthe head of the stud, as best illustratedin carrying medium 17 by the attaching prongs Fig. 2f 16, Which pass through an aperture-in the dome-shaped portion 8 Which spreads the cap member 18, as illustrated in Fig. 2.`

'45 rivet and turns it outwardly and down- Thus a socketis provided which is of amin- 100 y Wardly against the tops of the projections imuinA thickness and is relatively flush With 9 (Fig. 2) pressed inwardly from the, dome-i theinner faceof the socket-carrying medium shapedportion and a base flange l0, Which 17. V kis secured to the base portion 2 of the stud When the stud and `socket are engaged, 1

v over the periphery of the base flange.- from lateral strain is effectively prevented The base flange 10 is depressed to form a by engagement ofthe vface of the socket recess beneath the portions of the base por- With the face ofthe base portion of the' tionr 2 of the stud, which bend with the head stud asshown in Fig. 2, By bringing these of the stud, thereby permitting 'the resilient two faces together, the line of strainis exert- 110 The rivet-receiving part comprises a carrying ,medium 17 and engage the usual. i

by bending aportion of the base portion 2 separation by lresolution of forces arising 105v ed on the fastener vat a point relatively close to the point where the neck of the stud engages the generally curved wall l5, thereby preventing any substantial tipping action which might otherwise result in separation of the fastener by resolution of forces. rllhe fastener may, however, be separated by outward pull exerted upon either the stud member or the socket member.

While I have shown and described a preferred embodiment of my invention, it will Ybe `understood that changesv involving omission, substitution, alteration and reversal of parts and even changes in the mode of operation, may be made without departing from the scope of my invention, which is best defined in the appended claims.

I claim:

1. A separable fastener stud comprising a head,'a neck and a base portion having a plurality of slits extending a substantia distance into vsaid base to provide a plu# rality of contractible and expansible portions adapted to bend in said base between the vends of the slits, an attaching member presenting' a flange secured to the base of ,the`stud, said flange having a'depressed portion spaced from the base of the stud to Vpermit free bending of the contractible and expansible portions of said base toward the flange of the attaching part and supporting means located in the recess formed by said depressed portion for supporting the portions of said base beyond the contractib-le and eXpansible portions of said.base7 said supporting means being located a substantial distance from the periphery of the base where it joinsv the neck of the stud..

2. A separable fastener stud comprising a head, a neck and a base portion having a plurality of slitsl extending a substantial distance vinto said base to provide a plurality of contractible and expansible portions adapted to bend upon straight lines in said base between the ends of the slits, an attaching member presenting a flange secured to thel base of the stud and spaced from a portion thereof to 'permit bending 4of the contractible and expansible portions: of said base toward lthe flange of the attaching part and a plurality of ysupporting struts between the base of the stud and the flange of the attaching member for supporting the base of the stud when said contractible and eXpansible portions 'of the'baserflex toward the flange of the attaching member.

3. A resilient fastener studpresenting a Y FRED s. GARR. l 

